JP2003097018A - Structure of internal angle part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of an internal angle part with excellent watertightness and design and easy to construct. SOLUTION: The structure 1 of the internal angle part has a joint treatment member 3 disposed at a joint part 17 between exterior wall panels 2 of the internal angle part. The exterior wall panels 2 are fastened to a structural frame 15 via a bed 14. The joint treatment member 3 comprises a base member 31 and a fitting member 32. The base member 31 has an abutting plate part 311, a center plate part 312, wall tongue parts 313, and elastic members 314. The base member has a fitting groove part 315 between the pair of wall tongue parts 313. The fitting member 32 has a surface joint forming part 321 and a tongue part 322. The back sides 22 of the exterior wall panels 2 are brought into intimate contact with the elastic members 314 and the tongue part 322 of the fitting member 32 is fitted into the fitting groove part 315. The surface joint forming part 321 of the fitting member is brought into intimate contact with the side end faces 23 of the exterior wall panels 2. The base member 31, the fitting member 32 and the exterior wall panels 2 together form a water channel 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an entry corner construction structure in which a joint treatment member is provided in a joint between a pair of outer wall plates arranged in an entry corner of a building.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS.
In a corner portion of a building, a pair of outer wall plates 2 are arranged so as to be substantially at right angles to each other, and are fastened to a structural body 95 by a fastening metal member 8 through a base material 94 such as a furring strip. There is a corner construction structure 9. That is, the inside corner construction structure 9
In the above, the waterproof paper 96 is interposed between the structural body 95 and the base material 94. Further, a corner fitting 91 is disposed between the pair of outer wall plates 2, and a backup material 92 and a sealing material 93 are provided between the corner fitting 91 and the side end surface 23 of the outer wall plate 2. Is provided. This prevents rainwater from entering through the above-mentioned corners.

[0003]

However, since it is necessary to drive the sealing material 93 into the interior corner construction structure 9, the construction is laborious and the construction period becomes long. Also,
In the inside corner construction structure 9, the sealing material 9 is used.
3 is exposed on the outer wall surface. Therefore, the sealing material 9
Depending on the construction state of No. 3, it becomes a cause of lowering the appearance design of the entry corner construction structure 9. Further, since the above-mentioned entry corner metal fitting 91 is also exposed on the surface of the outer wall, it may also cause a deterioration in the appearance design of the entry corner part construction structure 9.

Further, it is inevitable that the sealing material 93 is deteriorated due to deterioration over time and deterioration caused by insufficient weather resistance. As a result, the interior corner construction structure 9 deteriorates in appearance and design, and there is a risk that the rain-sealing performance may be impaired.

The present invention has been made in view of the above conventional problems, and an object thereof is to provide a construction for entering a corner portion which is excellent in waterproofness, appearance and design and is easy to construct.

[0006]

SUMMARY OF THE INVENTION The present invention is a construction for constructing a corner portion in which a joint treatment member is arranged in a joint portion between a pair of outer wall plates arranged at a predetermined angle in the corner portion of a building. The outer wall plate is fastened to the structural body through a base material such as a furring strip, and the joint treatment member is a base member fixed to the base material and a fitting member fixed to the base member. The base member comprises a pair of abutting plate portions arranged at a predetermined angle to each other and abutting the base material, a central plate portion formed between the pair of abutting plate portions, and a central plate portion. The plate portion has a pair of wall strips formed along the longitudinal direction thereof and a pair of elastic members provided on the contact plate portion, and the fitting member is provided between the pair of wall strips. It has a fitting groove for fitting the The material has an elastic surface joint forming portion for closing the joint portion, and a ridge portion provided along the longitudinal direction of the surface joint forming portion, and the outer wall plate is The back side surface of the outer wall plate is brought into close contact with the elastic material, and the fitting member fits the ridge portion of the fitting member into the fitting groove portion of the base member, and the surface joint forming portion is provided on the outer wall plate side. It comes into close contact with the end face,
According to another aspect of the present invention, there is provided a construction for entering a corner portion, characterized in that a water conduit is formed by the base member, the fitting member and the outer wall plate.

As described above, in the structure for constructing the inside corner portion, the surface joint forming portion of the fitting member is brought into close contact with the side end surface of the outer wall plate. Therefore, it is possible to prevent water leakage from the joint between the pair of left and right outer wall plates at the entry corner.

In addition, the above-mentioned entry corner construction structure forms the above-mentioned water conduit as described above. Further, since the back surface of the outer wall plate is brought into close contact with the elastic material, the water conduit is cut off from the backing material, the structural body, or the back surface of the outer wall plate. Therefore, even if water intrudes into the joint portion between the surface joint forming portion and the side end surface of the outer wall plate, the water will flow downward through the headrace channel to the outer wall plate. There is no danger of reaching the back side, base material, or structural frame. Therefore, the above-mentioned entry corner construction structure is excellent in waterproofness, and it is possible to prevent deterioration of the outer wall plate and the structural body due to water leakage.

Further, the processing of the joint portion in the construction for constructing the inside corner can be performed by constructing the joint processing member. That is, by fixing the base member to the base material and fitting the fitting member to the base member, the joint portion can be easily treated.
Therefore, the above-mentioned entry corner construction structure can be easily constructed.

The joint treatment member can be constructed by fixing the base member to the base material and fitting the fitting member into the base member. Therefore, it is easy to reproduce the same construction condition, and it is difficult for the joint to stand out due to the difference in construction condition. Therefore, it is possible to obtain an entry corner construction structure having an excellent appearance design.

As described above, according to the present invention, waterproofness,
It is possible to provide an entry corner construction structure that has an excellent external appearance and is easy to construct.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention (Claim 1), the outer wall plate may be fastened to a structural body through a base material, for example, by fastening metal fittings, or may be nailed through the base material. May be fixed to the structural body. The fastening metal fitting is, for example, a base plate portion that abuts on the back side surfaces of outer wall plates arranged vertically, a support part that is erected forward from the base plate part, and an upper plate that is bent obliquely upward from the support part. It has a locking part and a lower plate locking part bent obliquely downward from the support part. The fastening metal fitting holds the upper side portion of the lower outer wall plate by the lower plate locking portion, supports the upper outer wall plate by the supporting portion, and engages the lower side portion by the upper plate locking portion. I stopped it and fastened the outer wall board. The "predetermined angle" may be, for example, 60 to 120 °.

In the base member, a stopper portion is provided upright on the abutting plate portion inside the elastic material, and a side end surface of the outer wall plate abuts on the stopper portion. Preferred (Claim 2). In this case, the outer wall plate can be disposed at an accurate position, and the width of the joint can be kept substantially constant.

In the design surface of the surface joint forming portion of the fitting member, the center portion in the width direction has a groove color different from the surface color of the outer wall plate, and both side portions other than the center portion have the outer wall. It is preferable that the color is substantially the same as the surface of the plate (claim 3). As a result, it is possible to obtain an interior corner construction structure having an excellent appearance design.

That is, when the fitting member is applied to the joint portion of the outer wall plate, the central portion of the surface joint forming portion having the groove color is used as the bottom surface of the joint portion, and both of the surface joint forming portion having the outer wall surface color are used. The side portion can be a portion that comes into close contact with the side end surface of the outer wall plate. Therefore, the joint processing member can be fused to the outer wall plate without any discomfort, and a three-dimensional effect can be exhibited.

In addition, in the above-mentioned corner construction structure in which the joint treatment member is arranged, the width of the groove color at the center of the surface joint forming portion which is the bottom of the joint is constant. Therefore, even if the width of the joint portion is slightly changed due to a cutting dimension error or the like on the side end surface of the outer wall plate arranged in the corner portion, the joint width looks constant. The groove color is darker than the outer wall surface color, and may be gray, black, or the like.

Further, it is preferable that the abutting plate portion and the central plate portion of the base member are formed by coating a surface of a core material made of steel with synthetic rubber (claim 4). As a result, the base member is provided with water resistance, the strength is secured, and the base member is easily fixed to the structural body.

The fitting member is preferably made of synthetic rubber (claim 5). As a result, the fitting member has water resistance, can be easily fitted to the base member, and can be surely brought into close contact with the outer wall plate. Therefore, it is possible to obtain an entry corner construction structure that is easier to construct and has excellent waterproofness.

The elastic material is preferably a resin foam (claim 6). Thus, the outer wall plate can be easily and surely brought into close contact with the elastic material.
Therefore, it is possible to obtain an entry corner construction structure that is easier to construct and has excellent waterproofness.

[0020]

[Embodiment] (Embodiment 1) A construction structure of an inside corner portion according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the entry corner construction structure 1 of this example has a substantially right angle to each other (for example, 85 to 95 °) in the entry corner of the building.
Joint part 1 between a pair of outer wall plates 2 arranged so that
7, the joint treatment member 3 is arranged.

As shown in FIGS. 1 to 3, the outer wall plate 2 is fastened to the structural skeleton 15 by the fastening fittings 4 through the base material 14 such as the furring strip. As shown in FIGS. 1 and 2, the joint treatment member 3 includes a base member 31 (FIG. 4) fixed to the base material 14 and a fitting member 32 (FIG. 5) fitted and fixed to the base member 31. Become.

The base member 31 is shown in FIGS.
As shown in FIG.
A pair of contact plate portions 311 that come into contact with each other, a central plate portion 312 formed between the pair of contact plate portions 311, and a pair of central plate portions 312 formed along the longitudinal direction of the central plate portion 312. It has a wall strip 313 and a pair of elastic members 314 provided on the contact plate 311. A fitting groove 315 for fitting the fitting member 32 is formed between the pair of wall strips 313.

On the other hand, as shown in FIGS. 1, 2 and 5, the fitting member 32 has an elastic surface joint forming portion 321 for closing the joint portion 17 and the surface joint forming portion 321. It has a ridge portion 322 provided along the longitudinal direction. Further, as shown in FIGS. 1 and 2, the outer wall plate 2 has the back side surface 22 of the outer wall plate 2 closely attached to the elastic member 314. The fitting member 32 fits the protrusion 322 of the fitting member 32 into the fitting groove portion 315 of the base member 31, and the surface joint forming portion 32.
1 is closely attached to the side end surface 23 of the outer wall plate 2.

As shown in FIGS. 1 and 2, the water guide passage 13 is formed by the base member 31, the fitting member 32, and the outer wall plate 2. As shown in FIG. 1, the joint treatment member 3 is disposed in a joint portion 17 in the vertical direction, and the water conduit 13 is formed vertically along the joint portion 17.

Further, as shown in FIGS. 1, 2 and 4, the base member 31 has a stopper portion 316 standing on the abutting plate portion 311 inside the elastic member 314. Then, as shown in FIGS. 1 and 2, the side end surface 23 of the outer wall plate 2 is brought into contact with the stopper portion 316.

Further, as shown in FIG. 5, the design surface 323 of the surface joint forming portion 321 of the fitting member 32.
Is a groove portion color that is different from the color of the surface of the outer wall plate 2 in the center portion 324 in the width direction, and both side portions 325 other than the center portion 324 are substantially the same color as the surface of the outer wall plate 2. The surface color. For example, the groove color is gray and the outer wall surface color is beige (camel color).

The surface joint forming portion 321 is shown in FIGS.
As shown in FIG. 7, a rubber sheet 329 is formed by thermocompression bonding to the base portion 320 integrally formed with the ridge portion 322, the rubber sheet 329 having a gray central portion and beige on both sides. As a result, the design surface 323 of the surface joint forming portion 321 is color-coded into, for example, beige and gray as described above.

Further, as shown in FIGS. 2 and 7, the fitting member 32 of the joint treatment member 3 fitted in the joint portion 17 of the outer wall plate 2 has the both side portions 325 of the surface joint forming portion 321 at the central portion. It is bent with respect to 324 and is in close contact with the side end surface 23 of the outer wall plate 2. Further, as shown in FIGS. 5 and 6, two pairs of protruding strips 326 are formed on the left and right sides of the protruding strip portion 322 of the fitting member 32. As shown in FIG. 7, when the protrusions 322 are fitted in the fitting grooves 315 of the base member 31, the protrusions 32
6 engages with the wall strip portion 313 of the base member 31 to prevent it from coming off. That is, in the state where the protrusion 326 is urged in the direction to spread due to its elasticity, the protrusion 32
2 is fitted in the fitting groove 315.

Further, as shown in FIG. 4, the contact plate 311 and the central plate 312 of the base member 31 are obtained by coating the surface of a core material 319 made of steel with synthetic rubber such as PVC (polyvinyl chloride). It becomes. The abutting plate portion 311 is formed by bending the center plate portion 312 at an angle of about 135 ° to the standing side of the wall strip portion 313. Also,
The wall strip portion 313 and the stopper portion 316 are made of rigid rubber such as PVC. The fitting member 32 is made of synthetic rubber such as chlorosulfonated polyethylene. The elastic material 314 is a closed cell type resin foam, and is adhered to the contact plate portion 311 via an adhesive 317.

Further, in the entry corner construction structure 1 of this example, as shown in FIGS. 1 to 3, the outer wall plate 2 is fixed to the structural body 15 by the fastening metal fitting 4 through the base material 14. ing.

The fastening member 4 includes a base plate portion 41, a support portion 42 standing upright from the base plate portion 41, an upper plate locking portion 43 bent obliquely upward from the support portion 42, and It has a lower plate locking portion 44 that is bent obliquely downward from the support portion 42. In addition, the upper plate locking portion 43 and the lower plate locking portion 44
A front flat plate portion 434 is formed in front of the.

Further, the base plate portion 41 has an inclined surface portion 411 that recedes obliquely rearward at the upper portion thereof, and an upper leg portion 413 that extends upward from the upper end of the inclined surface portion. Further, the board portion 41 has a lower end portion of approximately 90 mm.
It has a lower leg portion 412 that is bent backward.

The fastening member 4 is fixed to the structural body 15 with the nail 19 via the base material 14. The fastening fitting 4 locks the upper side portion 24 of the lower outer wall plate 2 by the lower plate locking portion 44, supports the upper outer wall plate 2 by the support portion 42, and locks the upper plate. Part 4
The outer wall plate 2 is fastened by locking the lower side portion 25 by 3. A waterproof paper 16 is interposed between the base material 14 and the structural body 15 (FIG. 1).

Further, as shown in FIG. 3, an upper lower solid 241 is formed on the upper side portion 24 of the outer wall plate 2 and a lower upper solid 251 is formed on the lower side portion 25 thereof. In the above-mentioned entry corner construction structure 1, the lower solid 251 of the upper outer wall plate 2 and the upper lower solid 241 of the lower outer wall plate 2 are jointly joined. Then, as shown in FIG. 3, the caulking material 26 cast on the upper upper shell 241 is pressed by the back side surface of the lower upper shell 251 to form a structure for preventing rainwater from entering.

Further, as shown in FIG. 3, stepped notches 271 are provided on the front side surfaces of the lower side portion 25 and the upper side portion 24 of the outer wall plate 2, and a lateral joint portion 27 is formed by both. Further, lateral groove portions 28 are formed on the front side surface 29 of the outer wall plate 2 at predetermined intervals. The outer wall plate 2
On the front side surface 29 of the side joint portion 27 and the side groove portion 28.
Except for the above, a beige coating layer 290, which is the surface color of the outer wall, is formed. In addition, the side joint portion 27 and the side groove portion 28
The groove is painted in gray, which is the color of the groove.

Next, a construction method of the construction for constructing the inside corner portion of this embodiment will be described with reference to FIGS. 6 and 7. First, the base member 31 of the joint treatment member 3 is replaced with the base material 14 in the corner portion.
Then, the nail 18 is hit and fixed. In addition, the fastener 4 is attached to the structural body 15 via the base material 14 and the nail 19
Fixed by.

Next, as shown in FIG. 6, the pair of left and right outer wall plates 2 and 2 are brought into close contact with the back surface 22 of each side end portion 21 to the elastic member 314, and the fastening metal fitting 4 is interposed therebetween. The structure body 15 is fixed. Then,
As shown in FIG. 7, the fitting member 32 is fitted into the joint portion 17 between the adjacent outer wall plates 2. At this time,
As shown in FIG. 7, the protrusion 32 of the fitting member 32 is
2 is fitted in the fitting groove portion 315 of the base member 31, and both side portions 325 of the surface joint forming portion 321 are brought into close contact with the side end surface 23 of the outer wall plate 2.

Next, the function and effect of this example will be described. As described above, in the entry corner construction structure 1, the surface joint forming portion 321 of the fitting member 32 is brought into close contact with the side end surface 23 of the outer wall plate 2. Therefore, it is possible to prevent water leakage from the joint portion 17 between the pair of left and right outer wall plates 2 in the entering corner portion.

Further, the above-mentioned entry corner construction structure 1 forms the above-mentioned water conduit 13 as described above. The elastic material 314 is attached to the back side surface 22 at the side end 21 of the outer wall plate 2.
Due to the close contact of the above, the water conduit 13 is blocked from the base material 14, the structural body 15, or the back side surface 22 of the outer wall plate 2 excluding the side end portions 21.

Therefore, in the joint portion 17, even if water intrudes from between the surface joint forming portion 321 and the side end surface 23 of the outer wall plate 2, the water will not pass through the water conduit 13.
There is no possibility that it will flow downward through the outer wall plate 2, reach the back side surface 22 of the outer wall plate 2, the base material 14, or the structural frame 15. Therefore, the above-mentioned entry corner construction structure 1 is excellent in waterproofness and can prevent deterioration of the outer wall plate 2 and the structural body 15 due to water leakage.

Further, the processing of the joint portion 17 in the above-mentioned entry corner construction structure 1 can be carried out by constructing the joint processing member 3. That is, by fixing the base member 31 to the base material 14 and fitting the fitting member 32 to the base member 31, the joint portion 17 can be easily treated. Therefore, the above-mentioned entry corner construction structure 1 can be easily constructed.

The joint treatment member 3 can be constructed by fixing the base member 31 to the base material 14 and fitting the fitting member 32 into the base member 31. Therefore, it is easy to reproduce the same construction state, and it is difficult for the joint 17 to stand out due to the difference in construction state. Therefore, it is possible to obtain the interior corner construction structure 1 having an excellent appearance design.

Further, the base member 31 is provided with the stopper portion 316 provided upright, and the side end surface 23 of the outer wall plate 2 is brought into contact with the stopper portion 316 (FIGS. 2, 6 and 7). ). Therefore, the outer wall plate 2 can be arranged at an accurate position, and the width of the joint portion 17 can be kept substantially constant.

Further, the design surface 323 of the surface joint forming portion 321 of the fitting member 32 has the central portion 324.
Is a groove color (gray) different from the surface color of the outer wall plate 2, and the both side portions 325 are outer wall surface colors (beige) that are substantially the same color as the surface of the outer wall plate 2. Therefore, the above-mentioned entry corner construction structure 1 using the above-mentioned joint treatment member 3 can obtain an excellent appearance design.

That is, when the fitting member 32 is applied to the joint portion 17 of the outer wall plate 2, the central portion 324 of the surface joint forming portion 321 which is the groove color is used as the bottom surface of the joint portion 17 and the outer wall surface color is set. Both sides 325 of the surface joint forming section 32
Can be a portion in close contact with the side end surface 23 of the outer wall plate 2. Therefore, the joint treatment member 3 can be fused to the outer wall plate 2 without a feeling of strangeness, and a three-dimensional effect can be expressed. That is, the joint portion 1 in which the joint treatment member 3 is arranged
7 can have the same appearance as the lateral groove portion 28 and the lateral joint portion 27 formed on the front side surface 29 of the outer wall plate 2.

Further, in the above-mentioned entry corner construction structure 1 in which the joint treatment member 3 is disposed, the width of the groove color of the central portion 324 of the surface joint forming portion 321 which is the bottom surface of the joint portion 17 is constant. . Therefore, even if the width of the joint portion 17 is slightly changed due to a cutting dimension error or the like on the side end surface 23 of the outer wall plate 2 arranged in the corner portion, the joint width looks like a constant joint width.

The contact plate portion 31 of the base member 31
1 and the central plate portion 312 are formed by coating the surface of the core material 319 made of steel with synthetic rubber, and therefore the base member 31
Water resistance, strength is secured, and structure frame 1
Fixing to 5 becomes easy.

Further, since the fitting member 32 is made of synthetic rubber, the fitting member 32 is made to have water resistance,
It can be easily fitted to the base member 31 and can be surely brought into close contact with the outer wall plate 2. Therefore, it is possible to obtain an entry corner construction structure that is easier to construct and has excellent waterproofness.

Further, since the elastic member 314 is a resin foam, the outer wall plate 2 can be easily and reliably attached to the elastic member 3 and
It can be closely attached to 14. Therefore, it is possible to obtain the entry corner construction structure 1 that is easier to construct and has excellent waterproofness.

As described above, according to the present embodiment, it is possible to provide a construction for entering a corner portion which is excellent in waterproofness and appearance and is easy to construct.

(Embodiment 2) In this embodiment, as shown in FIGS. 8 and 9, the stopper portion 316 of the base member 31 of the joint treatment member 3 is formed by bending. That is, as shown in FIG. 9, the central plate portion 312, the pair of stopper portions 316, and the pair of contact plate portions 311 are
One core material 319 is bent and coated with synthetic rubber. Others are the same as in the first embodiment.

In this case, the base member 31 can be easily manufactured. Also, the strength of the stopper portion 316 can be improved. In addition, the same effects as those of the first embodiment can be obtained. Note that one of the pair of stopper portions 316 may have the shape shown in the second embodiment and the other may have the shape shown in the first embodiment.

Further, in the above-mentioned Examples 1 and 2, an example was shown in which the outer wall plate was fastened to the structural body through the base material by the fastening metal fittings, but the outer wall plate was fastened by the nailing work through the base material. When it is fastened to the structural body by
The same effect can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of an inner corner construction structure according to a first embodiment.

FIG. 2 is a horizontal cross-sectional view of a construction structure for an entering corner in the first embodiment.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view of a base member that constitutes a joint treatment member according to the first embodiment.

FIG. 5 is a perspective view of a fitting member that constitutes a joint treatment member according to the first embodiment.

FIG. 6 is an explanatory view showing a state before disposing a fitting member in the first embodiment.

FIG. 7 is an explanatory diagram showing a state after disposing a fitting member in the first embodiment.

FIG. 8 is a horizontal cross-sectional view of the entry corner construction structure according to the second embodiment.

FIG. 9 is a perspective view of a base member that constitutes a joint treatment member according to the second embodiment.

FIG. 10 is a perspective view of an entering corner portion construction structure in a conventional example.

FIG. 11 is a horizontal cross-sectional view of a construction structure for a corner portion in the conventional example.

[Explanation of symbols]

1. ． ． Entry corner construction structure, 13. ． ． Headrace, 14. ． ． Base material, 15. ． ． Structural frame, 17. ． ． Joint, 2. ． ． Exterior wallboard, 22. ． ． Back side, 23. ． ． Side end face, 3. ． ． Joint treatment material, 31. ． ． Base member, 311. ． ． Abutting plate, 312. ． ． Center plate, 313. ． ． Wall strip, 314. ． ． Elastic material, 315. ． ． Mating groove, 316. ． ． Stopper part, 32. ． ． Fitting member, 321. ． ． Surface joint formation part, 322. ． ． Ridge, 4. ． ． Fastening hardware,

Continued front page    F-term (reference) 2E001 DA01 DA02 FA04 FA09 FA52                       FA53 FA63 FA65 FA73 GA10                       GA13 GA63 GA82 HB02 HE01                       HF02 KA04 LA04 LA12 MA03                       MA04 MA06 MA11                 2E110 AA14 AA42 AB04 AB22 AB28                       BA12 CA07 CC03 CC12 CC13                       CC20 CC25 DA10 DC02 DD02                       DD10 DD14

Claims (6)

[Claims] 1. An entrance corner construction structure in which a joint treatment member is provided in a joint between a pair of outer wall plates arranged at a predetermined angle in an entrance corner of a building. Is fastened to the structural body through a base material such as a furring strip, and the joint treatment member includes a base member fixed to the base material and a fitting member fitted and fixed to the base member. The base member includes a pair of abutting plate portions arranged at a predetermined angle and abutting against the base material, a central plate portion formed between the pair of abutting plate portions, and the central plate portion. To have the pair of wall strips formed along the longitudinal direction and the pair of elastic members provided on the abutting plate, and to fit the fitting member between the pair of wall strips. Of the joint groove, while the fitting member has the joint groove. A surface joint forming portion having elasticity for closing the portion, and a ridge formed along the longitudinal direction of the surface joint forming portion, and the outer wall plate is a back surface of the outer wall plate. To the elastic member, and the fitting member is such that the protrusion of the fitting member is fitted into the fitting groove portion of the base member and the surface joint forming portion is brought into close contact with the side end surface of the outer wall plate. In addition, the construction structure for an inside corner portion, characterized in that a water conduit is formed by the base member, the fitting member, and the outer wall plate. 2. The base member according to claim 1, wherein
A structure for forming an inside corner, wherein a stopper portion is provided upright on the contact plate portion inside the elastic material, and a side end surface of the outer wall plate is brought into contact with the stopper portion. 3. The design surface of the surface joint forming portion of the fitting member according to claim 1 or 2, wherein the center portion in the width direction has a groove color different from the color of the surface of the outer wall plate.
The inside corner construction structure, wherein both side portions other than the central portion have an outer wall surface color that is substantially the same color as the surface of the outer wall plate. 4. The method according to claim 1, wherein
The contact plate portion and the central plate portion of the base member have a core material made of steel and a synthetic rubber coating on the surface of the core material. 5. The method according to any one of claims 1 to 4,
The above-mentioned fitting member is made of synthetic rubber. 6. The method according to any one of claims 1 to 5,
The above-mentioned elastic material is a resin foam, and a construction structure for a corner portion is provided.